Actor Scott Baio revealed his wife was diagnosed with a brain tumor on Tuesday. Here, he arrives at the premiere of "Red Eye" in Los Angeles on Aug. 4, 2005. Photo: Reuters

Scott Baio’s wife, Renee, has been diagnosed with a brain tumor, and the 54-year-old actor is asking fans for prayers. He shared the news on his Facebook page Tuesday.

"Just a few days ago we learned my wife, Renee has a meningioma brain tumor," the former “Charles in Charge” star wrote, as reported by People on Thursday. "Although 90% of these type of tumors are benign they can cause serious problems depending on the size of the tumor and the location. We are waiting to learn the exact location to see if it’s operable. "

Baio also reached out to his fans on Twitter, asking for support.

Sometimes God throws you a curve ball. If any extra prayers, give them to @MrsScottBaio Thanks

The actor has been married to Renee Sloan, 42, for seven years. They have a daughter, Bailey, 7. In the same post, Baio called his wife “his rock” and hoped her hardship would help others facing the same challenges.

"Renee has been down some rough roads in her life, yet each time with her strong faith in God, she comes through a better and stronger person," he added. "During this time we ask for your prayers and support. My wife is my rock. She refuses to even shed one tear, nor will she question God's will. Renee, Bailey and I will get through this and along the way maybe help educate others to get checked out (MRI with contrast) as 6500 people each year, mostly women get these tumors."

This isn’t the first health scare the family has faced. The actor discussed the possibility of his daughter having a rare metabolic disorder called glutaric acadimia type 1 in 2008, though the baby was revealed to be healthy after months of waiting.

“It was the worst time in my life. I don’t know how to explain that to you. I don’t, other than, every breath that you take, every thought that you have, every moment that you’re conscious, it’s all you’re thinking about,” Baio told People in June 2008. "No matter what the conversation is about, what movie you’re watching, what you’re eating ... This disease is the constant thought in your brain. It never leaves you. Ever. You can’t breathe.”